A percent is a ratio of a number to 100
0.569 is read as five-hundred sixty-nine thousandths, so as a fraction it is written as 569/1000.
All you are trying to find out is 569/1000 is how many hundredths:
569/1000 = x/100
Cross multiply:
1000x = 100*569
1000x = 56,900
x = 56.9
Answer: 0.569 = 56.9%